.edui-toolbar .edui-btn .edui-icon-formula1 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-2px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula2 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-26px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula3 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-50px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula4 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-74px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula5 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-98px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula6 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-122px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula7 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-146px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula8 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-170px -2px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula9 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-5px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula10 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-27px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula11 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-51px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula12 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-75px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula13 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-99px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}
.edui-toolbar .edui-btn .edui-icon-formula14 {
    background-image: url(images/formula.png);
    background-size: 192px 240px;
    background-position:-123px -26px;
    /*border: 1px solid #cccccc;*/
    cursor: pointer;
    display: block;
    float: left;
    height: 20px;
    margin: 0px;
    width: 20px;
}